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Search Results: 1 - 4 of 4 matches for " tentacular cirri "
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Re-description of Dysponetus joeli Olivier et al., 2012 (Polychaeta, Chrysopetalidae), with a new key to species of the genus
Teresa Darbyshire
European Journal of Taxonomy , 2012, DOI: 10.5852/ejt.2012.27
Abstract: Dysponetus is a genus of the family Chrysopetalidae with twelve currently described species. Specimens are fragile and easily damaged or broken during sampling making identification difficult. The most recently described species, Dysponetus joeli Olivier et al., 2012, from the Bay of Biscay and English Channel, was described from a few small, damaged and poorly preserved specimens. New specimens from the Isles of Scilly, in much better condition, resembled D. joeli except for the absence of ventral cirri on segment 3. Examination of the type material of D. joeli showed it to be identical to these new specimens and highlighted errors in the original description of the species. This paper corrects the errors and a revised key to species is produced. The differences between D. joeli and the two most similar species, D. bipapillatus Dahlgren, 1996 and D. macroculatus Dahlgren, 1996 are also detailed.
PROBLEMA EN EL NUMERO DE PARCHES DE CIRROS NUCALES EN PECES DEL GENERO CALLICLINUS GILL 1860 (OSTEICHTHYES, LABRISOMIDAE)
Peque?o R.,Germán; Sáez B.,Sylvia;
Gayana (Concepción) , 2005, DOI: 10.4067/S0717-65382005000100019
Abstract: the existence of fishes of the genus calliclinus with less than three patches of nape cirri, produce systematic and taxonomic problems, mainly confussion with the genus auchenionchus gill, in which one of the diagnostic characteristics is to have two patches. the problem is analyzed on the basis of 543 specimens. the main conclusion is that both described taxa are valid, in spite of this problem
PROBLEMA EN EL NUMERO DE PARCHES DE CIRROS NUCALES EN PECES DEL GENERO CALLICLINUS GILL 1860 (OSTEICHTHYES, LABRISOMIDAE) PROBLEMS IN THE AMOUNT OF CEPHALIC CIRRI PATCHES IN FISHES OF GENUS CALLICLINUS GILL 1860 (OSTEICHTHYES, LABRISOMIDAE)
Germán Peque?o R.,Sylvia Sáez B.
Gayana (Concepción) , 2005,
Abstract: La existencia de peces del género Calliclinus con menos de tres parches de cirros nucales genera problemas sistemáticos y taxonómicos, especialmente confusión con el género Auchenionchus Gill, uno de cuyos caracteres diagnósticos indica dos parches. Se analiza el problema con 543 ejemplares y se concluye que pese a este problema, los taxa descritos son válidos The existence of fishes of the genus Calliclinus with less than three patches of nape cirri, produce systematic and taxonomic problems, mainly confussion with the genus Auchenionchus Gill, in which one of the diagnostic characteristics is to have two patches. The problem is analyzed on the basis of 543 specimens. The main conclusion is that both described taxa are valid, in spite of this problem
Detection system for Xanthomonas axonopodis pv. citri using Rolling Circle Amplification
柑桔溃疡病菌滚环扩增检测体系的建立

Guanjun Huang,Youping Yin,Lun Zhang,Xiaojiao Li,Jianjun Ge,Hongjun Chen,Zhongkang Wang,
黄冠军
,殷幼平,张仑,李小焦,葛建军,陈洪俊,王中康

微生物学报 , 2008,
Abstract: Padlock probe was designed based on the sequence of the unique hypothetic protein gene in complete genome of Xanthomonas axonopodis pv. citri (Xac), and amplification primers ware designed according to the universal linking sequence of padlock probe. Detection system of rolling circle amplification (RCA) was established and optimized. Results show that the system could detect Xac and its DNA specifically, while other plant pathogens and bacteria attached on the surface of citrus leaves could not be detected. This indicates that the detection system had its specificity. The detection sensitivity of RCA was 20 cfu/mL for Xac cells and 102copy/mL for cloned DNA fragment, which was slightly higher than the sensitivity of conventional PCR. Leaf samples collected from orange orchards were detected with both RCA and conventional PCR. The result shows that the Xac positive percentage had no remarkable difference between the two methods (P>0.01). Because the universal linking sequence in padlock probe can use same amplification condition, the new technology and detection system can be used to detect diverse plant pathogens simultaneously in plant quarantine and disease pre-symptom diagnosis.
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